python3+PyQt5实现拖放功能

本文是对《Python Qt GUI快速编程》的第10章的例子拖放用Python3+PyQt5进行改写，对图表列表，表格等进行相互拖放，基本原理雷同，均采用setAcceptDrops(True)和setDragEnabled(True)。

#!/usr/bin/env python3
import os
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import (QApplication, QDialog, QHBoxLayout,
 QListWidget, QListWidgetItem, QSplitter, QTableWidget)
from PyQt5.QtGui import QIcon

class Form(QDialog):

 def __init__(self, parent=None):
 super(Form, self).__init__(parent)

 listWidget = QListWidget()
 listWidget.setAcceptDrops(True)
 listWidget.setDragEnabled(True)

 path = os.path.dirname(__file__)
 for image in sorted(os.listdir(os.path.join(path, "images"))):
  if image.endswith(".png"):
  item = QListWidgetItem(image.split(".")[0].capitalize())
  item.setIcon(QIcon(os.path.join(path,
     "images/{0}".format(image))))
  listWidget.addItem(item)
 iconListWidget = QListWidget()
 iconListWidget.setAcceptDrops(True)
 iconListWidget.setDragEnabled(True)
 iconListWidget.setViewMode(QListWidget.IconMode)   

 tableWidget = QTableWidget()
 tableWidget.setRowCount(5)
 tableWidget.setColumnCount(2)
 tableWidget.setHorizontalHeaderLabels(["Column #1", "Column #2"])
 tableWidget.setAcceptDrops(True)
 tableWidget.setDragEnabled(True)

 splitter = QSplitter(Qt.Horizontal)
 splitter.addWidget(listWidget)
 splitter.addWidget(iconListWidget)
 splitter.addWidget(tableWidget)
 layout = QHBoxLayout()
 layout.addWidget(splitter)
 self.setLayout(layout)

 self.setWindowTitle("Drag and Drop")

if __name__ == "__main__":
 app = QApplication(sys.argv)
 form = Form()
 form.show()
 app.exec_()

运行结果：

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